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MXV-E Variable Speed Multi-Stage Vertical Pumps<br />

Characteristic curves and performance n 2900 rpm<br />

240<br />

220<br />

200<br />

180<br />

H<br />

m<br />

140<br />

120<br />

100<br />

80<br />

60<br />

40<br />

20<br />

η<br />

0<br />

U.S. g.p.m.<br />

5<br />

MXV-E 25-220<br />

MXV-E 25 - 204<br />

MXV-E 25 - 205<br />

MXV-E 25 - 206<br />

MXV-E 25 - 207<br />

MXV-E 25 - 208<br />

MXV-E 25 - 210<br />

MXV-E 25 - 212<br />

MXV-E 25 - 214<br />

MXV-E 25 - 216<br />

MXV-E 25 - 218<br />

MXV-E 25 - 220<br />

18<br />

16<br />

14<br />

12<br />

10<br />

8<br />

7<br />

6<br />

5<br />

4<br />

η<br />

kW<br />

P2<br />

10<br />

0<br />

0<br />

0<br />

3 m /h<br />

Q l/min<br />

1<br />

20 30<br />

2<br />

40<br />

3<br />

50 60<br />

4<br />

70<br />

0<br />

5<br />

80<br />

50<br />

0.2<br />

40<br />

%<br />

30<br />

4<br />

NPSH<br />

2<br />

m<br />

Pst<br />

0<br />

0<br />

3<br />

72.983<br />

0 Q m /h 1 2 3 4<br />

5<br />

Pump type<br />

HP<br />

0,75 1<br />

1,1 1,5<br />

1,1 1,5<br />

1,5 2<br />

1,5 2<br />

2,2 3<br />

2,2 3<br />

3 4<br />

3 4<br />

3 4<br />

4 5,5<br />

Q<br />

3 m /h<br />

l/min<br />

H<br />

m<br />

15<br />

n ≈ 2900 1/min<br />

0<br />

0<br />

44<br />

56<br />

68<br />

79,5<br />

91<br />

114<br />

136<br />

159<br />

182<br />

205<br />

228<br />

1<br />

16,6<br />

42,5<br />

53<br />

63,5<br />

74<br />

85<br />

106<br />

127<br />

149<br />

170<br />

191<br />

213<br />

115<br />

20<br />

1,5<br />

25<br />

40<br />

50<br />

60,5<br />

70,5<br />

80,5<br />

101<br />

121<br />

141<br />

161<br />

181<br />

202<br />

700<br />

600<br />

0.1<br />

0<br />

ft<br />

500<br />

400<br />

300<br />

200<br />

100<br />

Pst<br />

10<br />

ft<br />

kW<br />

2<br />

33,3<br />

37,5<br />

47<br />

56<br />

65,5<br />

75<br />

94<br />

112<br />

131<br />

150<br />

169<br />

188<br />

Test results with clean cold water, without gas<br />

content.<br />

A safety margin of + 0.5 m is recommended for the<br />

NPSH value.<br />

Tolerances in accordance with ISO 9906, Annex A.<br />

Head and power values valid for liquids with<br />

density = 1,0 kg/dm 3 and kinematic viscosity<br />

= max 20 mm 2 /sec.<br />

Pst = Power with reference to one stage.<br />

2,5<br />

41,6<br />

34,5<br />

43<br />

51,5<br />

60<br />

69<br />

86<br />

103<br />

121<br />

138<br />

155<br />

173<br />

3<br />

50<br />

31<br />

39<br />

46,5<br />

54,5<br />

62<br />

78<br />

93,5<br />

109<br />

124<br />

140<br />

156<br />

3,5<br />

58,3<br />

27<br />

34<br />

40,5<br />

47,5<br />

54<br />

68<br />

81,5<br />

95<br />

108<br />

122<br />

136<br />

4<br />

66,6<br />

22,5<br />

28<br />

34<br />

39,5<br />

45,5<br />

57<br />

68<br />

79,5<br />

91<br />

102<br />

114<br />

4,5<br />

75<br />

17<br />

21<br />

25<br />

30<br />

34<br />

42<br />

51<br />

59<br />

68<br />

76<br />

85<br />

12

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